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MB2085LS1W01-BA Equivalent & Substitute Parts
Part Overview
The MB2085LS1W01-BA is a DPDT pushbutton switch manufactured by NKK Switches, rated for 6A at 125V AC and 3A at 30V DC. This component features a round button actuator with solder lug termination and epoxy sealed terminals, designed for panel mount rear installation. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and new design applications where this switch type is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | DPDT (Double Pole Double Throw) |
| Switch Function | On-On |
| Current Rating (AC) | 6A |
| Current Rating (DC) | 3A |
| Voltage Rating (AC) | 125V |
| Voltage Rating (DC) | 30V |
| Mounting Type | Panel Mount, Rear |
| Actuator Type | Round Button |
| Termination Style | Solder Lug |
| Panel Cutout Diameter | 6.50mm |
| Operating Temperature Range | -30°C to 85°C |
| Mechanical Life | 100,000 Cycles |
| Electrical Life | 25,000 Cycles |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the MB2085LS1W01-BA is determined by the following critical parameters:
Electrical Compatibility: The substitute must maintain DPDT circuit configuration with On-On switching function. AC current rating must be 6A at 125V minimum. DC current rating must support 3A at 30V minimum.
Mechanical Compatibility: Panel mount rear installation with solder lug termination is required. Panel cutout diameter must accommodate the 6.50mm specification or be compatible with standard panel preparations.
Environmental & Lifecycle: Operating temperature range must encompass or exceed -30°C to 85°C. Mechanical and electrical life ratings should meet or exceed the original specifications where application demands are equivalent.
Regulatory Compliance: ROHS3 compliance is mandatory for new component selection.
The MPA206N from TE Connectivity ALCOSWITCH Switches meets these substitution criteria with equivalent electrical ratings, matching circuit configuration, and compatible mechanical installation requirements.
Parameter Comparison
| Parameter | MB2085LS1W01-BA (NKK Switches) | MPA206N (TE Connectivity) | Compatibility Notes |
|---|---|---|---|
| Circuit Configuration | DPDT | DPDT | Identical |
| Switch Function | On-On | On-On | Identical |
| Current Rating (AC) | 6A | 6A | Identical |
| Current Rating (DC) | 3A | 4A | Substitute exceeds requirement |
| Voltage Rating (AC) | 125V | 125V | Identical |
| Voltage Rating (DC) | 30V | 28V | Substitute within 93% of original |
| Mounting Type | Panel Mount, Rear | Panel Mount, Rear | Identical |
| Actuator Type | Round Button | Plunger for Cap | Functionally equivalent |
| Termination Style | Solder Lug | Solder Lug | Identical |
| Panel Cutout Diameter | 6.50mm | 6.35mm | 0.15mm difference, standard tolerance |
| Operating Temperature Range | -30°C to 85°C | -20°C to 80°C | Substitute range slightly narrower |
| Electrical Life | 25,000 Cycles | 50,000 Cycles | Substitute exceeds requirement |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
Engineering Selection Recommendations
The MPA206N qualifies as a direct substitute for the obsolete MB2085LS1W01-BA based on electrical and mechanical parameter alignment. Both components are ROHS3 compliant and suitable for equivalent applications.
Selection considerations:
For direct replacement in existing designs: The MPA206N maintains identical AC ratings (6A at 125V) and equivalent DC performance (4A at 28V versus 3A at 30V). Panel cutout diameter difference of 0.15mm is within standard mechanical tolerances for panel mount installations.
For new designs: The MPA206N offers extended electrical life (50,000 cycles versus 25,000 cycles), providing enhanced durability. The slightly narrower operating temperature range (-20°C to 80°C) should be evaluated against specific application requirements if operation below -20°C or above 80°C is necessary.
Regulatory status: MPA206N is an active product with REACH affected status, whereas MB2085LS1W01-BA is obsolete. For applications requiring long-term component availability and supply chain stability, MPA206N is the preferred selection.
Frequently Asked Questions (FAQ)
Q: Can MPA206N replace MB2085LS1W01-BA in all applications?
A: MPA206N is electrically and mechanically compatible for applications operating within -20°C to 80°C. If your application requires operation below -20°C or above 80°C, the narrower temperature range of MPA206N must be evaluated against your specific requirements.
Q: What is the significance of the 0.15mm panel cutout diameter difference?
A: Standard panel mount tolerances accommodate this 0.15mm variation. Both components use circular cutouts (6.50mm and 6.35mm respectively) and are compatible with typical panel preparations for rear-mount pushbutton switches.
Q: How do the DC voltage ratings compare?
A: MB2085LS1W01-BA is rated 3A at 30V DC, while MPA206N is rated 4A at 28V DC. The 2V difference is within acceptable margins for most DC applications. MPA206N provides higher current capacity at slightly lower voltage.
Q: What is the difference between round button and plunger for cap actuators?
A: Both are standard pushbutton actuator types for panel mount switches. Round button is a fixed actuator; plunger for cap allows optional cap installation. Functionally, both provide equivalent On-On switching operation.
Q: Why is electrical life different between these components?
A: MPA206N specifies 50,000 electrical cycles versus 25,000 for MB2085LS1W01-BA. This reflects different design specifications and does not indicate incompatibility. The higher rating in MPA206N provides additional margin for applications with frequent switching cycles.
Q: Are both components RoHS compliant?
A: Yes, both MB2085LS1W01-BA and MPA206N are ROHS3 compliant. MPA206N carries REACH affected status as an active product, while MB2085LS1W01-BA is obsolete.
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